The correct answer is A. It contains the genetic function.
There are bacteria and Achaea, and ancient prokaryote that is still around.
I would have to say probably d.
Answer
Crater
Explanation
When there is a volcanic eruption, lava , gases, ash and rocks are released on to the surface as super hot mix. The material that has been pulled out of the earth surface form visible volcanic land forms which include caldera, craters, lava domes and lava plateaus.